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- 1. Multiple Choice
Wastes produced by agriculture, households, industry, mining, and other human activities can end up in ______________.groundwaterstreams and riversoceansAll of these choices - 2. Multiple ChoiceAbout 97% of the water on Earth is ___________________.fresh watergroundwatersalt waterice
- 3. Multiple ChoiceIncrease in which gas is primarily responsible for increased global warming?Carbon dioxideWater vaporMethaneNitric oxides
- 4. Multiple ChoiceWhen fertilizers run off farmland into streams and ponds, the nitrogen content of the water increases. This can lead to rapid growth of algae in a process called eutrophication. How can this process affect other organisms in the water?Oxygen is used up as algae is decomposed, reducing the amount available to other organisms.The water becomes better able to support aerobic organisms.The algae provide food for fishes and other organisms, leading to decreased algae populations.The extra nitrogen provides additional food for the other organisms, increasing their population.
- 5. Multiple ChoiceWhich of the following historical events most likely triggered the largest increase in the human population?the Black Death plague, which occurred in the mid-1300sthe domestication of wheat crops, which began around 8000 B.Cthe fall of the Roman Empire, which occurred around A.D. 800the Industrial Revolution, which began in the late 1700s
- 6. Multiple Choicelargest number of individuals of a population that the environment can supportcarrying capacityprimary successiondenitrificationmutualism
- 7. Multiple ChoiceWhat is the most dramatic result of deforestation?land is no longer green and full of lifepictures from space show deforestationloss of habitat for approximately 70% of the worlds speciespeople can't explore rainforests
- 8. Multiple ChoiceWhich has the least negative impact on wildlife habitat?agriculturedevelopmentdeforestationrecreation
- 9. Multiple ChoiceLess rainfall in an area and higher temperatures could lead to ____________.urbanizationdeforestationdesertificationhigher pollution
- 10. Multiple ChoiceWhat are some reasons deforestation occurs?clearing land for agriculture, ranching, and miningjust wanting to destroy thingsPopulation moving from rural areas to citiesto make room for infrastructure
- 11. Multiple ChoiceThe natural resources used by society are limited by various factors. Why is coal considered a nonrenewable resource?Once coal is used up, it can never be replaced.Coal is a nonrenewable resource, because it comes from the impact of meteors with the EarthCoal was a renewable resource, until it was mismanaged by humansCoal is considered a nonrenewable resource, because it takes millions of years to form
- 12. Multiple ChoiceFossil fuels are an important natural resource used by society. Which of the following best describes fossil fuels?They are any liquid fuel derived from once-living matter.They are organic fuels derived from ancient plants and animals.They are fuels in which dinosaur fossils are commonly found.They are naturally occurring inorganic fuels like coal and petroleum.
- 13. Multiple ChoiceCarbon is released into the atmosphere through all of the following ways except:respirationcow flatulencephotosynthesisall of the above
- 14. Multiple ChoiceWind is a __________ energy resource.RenewableNonrenewable
- 15. Multiple ChoiceIn the U.S., laws enacted from the 1780's to the late 1800's reflected the perception thatthe amount of land and natural resources in the west was endless.the natural resources of the west could be used up and required legal protection.Americans were living amid dirtier air, dirtier water, and more waste and toxic chemicals.a sustainable future should be a primary goal.
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